Diff Report
Run #518080a5ca60d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518081a41c05e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518080a5ca60dRun #518081a41c05eDiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)24,041 24,005 -36 -0.1%
Incl. Wall Time (microsec) per call 407 407 -1 -0.1%
Excl. Wall Time (microsec)886 904 18 2.0%
Incl. CPU (microsecs)20,016 19,712 -304 -1.5%
Incl. CPU (microsecs) per call 339 334 -5 -1.5%
Excl. CPU (microsec)813 822 9 1.1%
Incl. MemUse (bytes)1,531,592 1,530,432 -1,160 -0.1%
Incl. MemUse (bytes) per call 25,959 25,940 -20 -0.1%
Excl. MemUse (bytes)-158,088 -157,896 192 0.1%
Incl. PeakMemUse (bytes)1,996,576 1,997,368 792 0.0%
Incl. PeakMemUse (bytes) per call 33,840 33,854 13 0.0%
Excl. PeakMemUse (bytes)6,120 6,080 -40 -0.7%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% -36 -3.0% -304 -23.5% -1,160 -26.9% 792 18.3%
Exclusive Metrics Diff for Current Function18 50.0% 9 3.0% 192 16.6% -40 -5.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -36 -100.0% -304 -100.0% -1,160 -100.0% 792 100.0%
Child functions
unserialize0 N/A% -121 -336.1% -243 -79.9% -1,296 -111.7% 600 75.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 65 180.6% -66 -21.7% -48 -4.1% 240 30.3%
explode0 N/A% 2 5.6% -4 -1.3% -8 -0.7% -8 -1.0%